321112032211 has 4 divisors (see below), whose sum is σ = 321345909792. Its totient is φ = 320878154632.

The previous prime is 321112032107. The next prime is 321112032221. The reversal of 321112032211 is 112230211123.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 112230211123 = 19 ⋅5906853217.

It is a cyclic number.

It is not a de Polignac number, because 321112032211 - 2⁷ = 321112032083 is a prime.

It is a super-2 number, since 2×321112032211² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321112032221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116936731 + ... + 116939476.

It is an arithmetic number, because the mean of its divisors is an integer number (80336477448).

Almost surely, 2^321112032211 is an apocalyptic number.

321112032211 is a deficient number, since it is larger than the sum of its proper divisors (233877581).

321112032211 is a wasteful number, since it uses less digits than its factorization.

321112032211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233877580.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 321112032211 its reverse (112230211123), we get a palindrome (433342243334).

The spelling of 321112032211 in words is "three hundred twenty-one billion, one hundred twelve million, thirty-two thousand, two hundred eleven".